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Ocean Relief - Indian Geography, UPSC IAS Exam Preparation Video Lecture | Geography (Prelims) by Valor Academy
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FAQs on Ocean Relief - Indian Geography, UPSC IAS Exam Preparation Video Lecture - Geography (Prelims) by Valor Academy
| 1. What is ocean relief in Indian geography? |  |
Ans. Ocean relief refers to the topographic features and landforms present on the ocean floor. In Indian geography, it refers to the various underwater features such as ridges, trenches, plateaus, and basins found in the Indian Ocean.
| 2. How does ocean relief affect marine life in the Indian Ocean? | |
Ans. Ocean relief plays a crucial role in shaping the marine ecosystem in the Indian Ocean. The different underwater features provide habitats for a diverse range of marine organisms. For example, underwater ridges and plateaus act as barriers and create upwelling currents, bringing nutrient-rich waters to the surface which supports the growth of phytoplankton and other lower-level organisms, thus sustaining the food chain.
| 3. Which underwater features are prominent in the Indian Ocean's ocean relief? | |
Ans. The Indian Ocean exhibits various prominent underwater features in its ocean relief. Some of these include the Mid-Indian Ridge, the Ninety East Ridge, the Carlsberg Ridge, the Chagos-Laccadive Ridge, and the Saya de Malha Bank. These features are a result of tectonic activity and volcanic processes in the region.
| 4. How does ocean relief impact ocean currents in the Indian Ocean? | |
Ans. Ocean relief significantly influences ocean currents in the Indian Ocean. Underwater ridges and plateaus act as barriers to the movement of water, diverting the flow and creating complex patterns of currents. They can also enhance the strength of currents or create eddies. Trenches, on the other hand, can act as channels for deep water circulation. The interaction between ocean relief and currents plays a vital role in the distribution of heat, nutrients, and marine life in the Indian Ocean.
| 5. What role does ocean relief play in the formation of tsunamis in the Indian Ocean? | |
Ans. Ocean relief plays a significant role in the formation and propagation of tsunamis in the Indian Ocean. Submarine earthquakes or volcanic eruptions, often associated with underwater tectonic features, can generate tsunamis. When these seismic events occur, the ocean relief features can either amplify or dampen the wave energy, affecting the intensity and direction of the tsunami. The shape and depth of the ocean floor also influence how the tsunami waves propagate and interact with coastal areas, leading to varying levels of damage.
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Dec 22, 2024 Last updated |
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